Inmarsat Plc has launched the first of its satellites for a planned global mobile broadband service network into space aboard an ILS-built rocket.

The Inmarsat-5 F1 satellite lifted off from Kazakhstan Monday aboard a Proton Breeze-M launch vehicle, then separated from the Proton rocket and reached a super-synchronous transfer orbit, Inmarsat said Monday.

I-5 F1, part of the Global Xpress network, will need to complete seven chemical burns in order to arrive at a geosynchronous elliptical orbit

Rupert Pearce, Inmarsat CEO, said the company intends for the GX satellite to deliver high-speed mobile broadband service to customers.

The company’s Hawaii-based Paumalu ground station acquired a telemetry signal for the mission team to control the I-5 F1 after the launch.

Deployment of the satellite’s solar arrays and reflectors is scheduled to complete by the end of December and the spacecraft is scheduled to reach final geostationary orbit by the end of January, before the payload testing begins in February.

Inmarsat intends for I-5 satellites to power its Ka-band network of 50-megabyte-per-second broadband services.